Clutch mechanism.



No. 897,044 PATENTEDAUG. 25, 1908.

' A. J. WINEGAR. CLUTCH MECHANISM.

APPLICATION FILED SEPT.14, 1907.

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No. 897,044. PATENTED AUG. 25, 1908.

Y A. J. WINEGAR.

CLUTCH MECHANISM.

APPLICATION FILED SEPT. 14, 1907.

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. I i b WITNESSES I a r 514 703 I ALBEPTdVI INEGAR 7? I v B; ll-MW No.897,044. PATENTED AUG. 25,1908. A. J, WINEGAR.

CLUTCH MECHANISM.

APPLICATION IILEZD 831F114, 1907.

' 8'SHBBTS-BHEET 3..

UNITED STATES PATENT OFFICE.

ALBERT J. WINEGAR, OF BELOIT, WISCONSIN, ASSIGNOR TO FAIRBANKS, MORSE &COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

oLu'rcH MECHANISM.

Specification of Letters Patent.

Patented Aug. 25, 1908.

Application filed September 14, 1907. Serial No. 392,920.

T 0 all whom it may concern:

Be it known that I, ALBERT J. WINEGAR, a citizen of the United States ofAmerica, residing at Beloit, in the county of Rock and State ofWViscons'in, have invented certain new and useful Improvements in ClutchMechanisms, of which the following is a specification, reference beinghad'therein to the accompanying drawings.

The invention relates to certain new and useful improvements in clutchmechanisms, and consists in the novel construction thereof, and furtherin the peculiar arrangement and combination of its various parts, asmore fully hereinafter described and specifically pointed out in theclaims.

In the drawings,Figure 1 is a view in side elevation of the clutchmechanism; Fig. 2 is a section therethrough showing some of the parts inelevation; Fig. 3 is a detail view, showing in elevation the majorportion of the rocking mechanism and the thrust member operated thereby;and Fig. 4 is a detail view showing in elevation the supporting meansfor the thrust nut.

For the purpose of illustrating the inven tion I have shown the same inconnection with a hoisting drum applied to a steam hoisting engine, inwhich A represents the engine shaft and B the frame.

C represents a rotary member fixed upon the shaft, preferably in theform of a drive wheel provided with a suitable annular friction surface,as D.

E designates the hoisting drum loosely sleeved upon the shaft A, andcarrying an an nular section 1*, provided with a friction sur face Cradapted upon the shifting of the drum towards the drive member to engageits friction surface, forming a locking engagement between the parts.

Loosely mounted upon the shaft A in proximity to the drum is a thrustmember II, preferably in the form of a two-part ring,

comprising the sections a and I), each carrylng an arm 0, the ring partsbeing held to gether by suitable bolts d. The thrust member described isadapted to shift the drum, through suitable mechanism hereinafterdescribed, into and out of frictional engagement with the drive memberC, and for this purpose has a swivel connection with the drum,permitting the latter to rotate after engagement with the drive memberindependently of the ring and other parts of the clutch mechanism. Theswivel connection is formed preferably by an annular flange I u on theringand a corresponding flange J bolted to the drum, the arrangement ofthe parts being plainly indicated in Fig. 2. Interposed between theflange I and the drum is an antifriction washer K, the purpose of whichis obvious.

For operating the thrust member, a rock mechanism is preferably employedadapted to be actuated in this instance by a single 0 erating member Uin the form of a lever. T e mechanism comprises .a rock shaft Lsupported on fixed pivots M and M mounted upon the frame B; lever arms OO fixed upon said shaft, and bolts Q Q pivoted respectively to the leverarms and connected preferably adjustably with the thrust member. Thebolt Q is pivoted between the furcations of the lever 0, while thecomplementary bolt Q is pivoted upon a headed pin 9 extend--- ingthrough the tubular bearing P in the outer end of the lever arm 0. Thebolt ends eX- tend through suitable openings formed in the extremitiesof the arms 0 of the thrust collar, and are adjustably held in place bynuts 6 and lock nuts f, the adjustable connections affording means fortaking up wear between the parts. The means for rocking the shaftconsist preferably of a thrust screw R pivoted upon the pin gintermediate its head it and the lever O a thrust nut S engaging thescrew, and held between the frame B and a bracket arm T against endwisemovement, and a lever U fashioned to engage the nut.

In Fig. 2 the parts of the clutch mechanism are shown as having beenoperated, the drum being in frictional engagement with the drive memberC and rotatingtherewith independently of the thrust member through theagency of the swivel connection described. To release the drum, thelever U is turned in a direction to force the thrust screw outwardlyfrom the nut, thereby rocking the rock shaft and shifting the thrustmember, thus releasing the drum. The frictional engagement between thedrum and drive member is obtained by a reverse movement of the operatinglever.

While I have shown the clutch as applied to a hoisting drum of anordinary hoisting engine, it will be obvious that it is susceptible ofother uses, and I do not therefore de- 1. In a clutch mechanism, thecombina tion with a shaft, of two rotary members thereon respectivelyfixed and loose upon the shaft and adapted upon relative longitudinalmovement to fixedly engage one with the other, a thrust member sleevedupon said shaft and swiveled to the loosely mounted member, a rock shaftconnected to the thrust member, and means for actuating said shaft.

2. In a clutch mechanism, the combination with a shaft, of two rotarymembers thereon respectively fixed and loose upon the shaft, and adaptedupon relative longitudinal movement to fixedly engage one with theother, a thrust member sleeved upon the shaft and swiveled to theloosely mounted member, a rock shaft transverse to said firstmentionedshaft, spaced operative connections between the rock shaft and saidloosely mounted member, and means for rocking said shaft.

3. In a clutch mechanism, the combination with a shaft, of two rotarymembers thereon respectively fixed and loose upon the shaft, and adaptedupon relative longitudinal movement to fixedly engage one with theother, a thrust member sleeved upon the shaft and swiveled to theloosely mounted member, a rock shaft, fixed operating members thereon,and connections between said members and the thrust member, and meansfor actuating the shaft.

4. In a clutch mechanism, the combination with a shaft, of two rotarymembers thereon respectively fixed and loose upon the shaft, and adaptedupon relative longitudinal movement to fixedly engage one with theother, a thrust member sleeved upon the shaft and swiveled to theloosely mounted member, a rock shaft, complementary fixed leversthereon, and adjustable connections between said levers and the thrustmember, and lever-controlled means for operating the re ck shaft.

5. In aclutch mechanism, the combination with a shaft, of a drive wheelfixed thereon and provided with a friction surface, a drum looselysleeved upon the shaft having a friction surface adapted to engage thecorresponding surface upon the drive wheel upon relative longitudinalmovement of the parts, a two-part thrust collar sleeved upon the shaftand swiveled to the drum, a rock shaft, adjustable operative connectionsbetween said shaft and the thrust collar, and means for operating therock shaft.

6. In a clutch mechanism, the combination with a shaft, of two rotarymembers thereon respectively fixed and loose upon the shaft and adaptedupon relative longitudinal movement to frictionally engage one with theother, a thrust member sleeved upon said shaft in operative relation tothe loosely mounted member, a rock shaft, operative connections betweensaid shaft and the thrust member, and means for rocking said shaftcomprising a thrust nut held against endwise movement, a thrust screwengaging the nut and operatively connected to the rock shaft, and alever for operating the nut.

7 In a clutch mechanism, the combina tion with a shaft, of two rotarymembers thereon respectively fixed and loose upon the shaft and adaptedupon relative longitudinal movement to fixedly engage one with theother, a two-part thrust member upon said shaft swiveled to theloosely-mounted member, a rock mechanism for shifting the thrust member,including a rock shaft transverse to the first-mentioned shaft havingoperative connections with the loosely-mounted member, and means foractuating the rock mechanism.

8. In a clutch mechanism, the combina tion with a shaft, of two rotarymembers thereon respectively fixed and loose upon the shaft and adaptedupon relative longitudinal movement to fixedly engage one with theother, a thrust member upon said shaft swiveled to the loosely-mountedmember, a rock mechanism including a rock shaft, adjustable operativeconnections between the rock mechanism and the thrust member, andlever-controlled means for actuating the rock mechanism. 7

9. In a clutch mechanism, the combination with a shaft, oftwo rotarymembers thereon respectively fixed and loose upon the shaft adapted uponrelative longitudinal movement to fixedly engage one with the other, athrust member swiveled to the loosely mounted member, a rock shaftoperatively connected to said thrust member, and means for rocking saidshaft.

10. In a clutch mechanism, the combination with a shaft, of two rotarymembers thereon respectively fixed and loose upon the shaft and adaptedto engage one with the other upon relative longitudinal movement, athrust member upon said shaft having a swiveled connection with saidloosely mounted member, means for shifting said member comprising a rockshaft transverse to the first mentioned shaft, adjustable operativeconnections between said shaft and thrust member, and means foroperating said shaft comprising a thrust nut held against endwisemovement, a thrust screw engaging the nut and operatively connected tothe rock shaft, and a lever for actuating the thrust nut to positivelyengage and disengage the clutch.

11. In a clutch mechanism, the combination with a shaft, of two rotarymembers thereon respectively fixed and loose upon the shaft and adaptedupon relative longitudinal l a movement of the lever in the opposite di-10 movement to fixedly engage one With the rection Will positivelydisengage the clutch. other, athrust member swiveled to the loosely Intestimony whereof I affix my signature mounted member, a rogk shaft,zildjusfiable in presence of two Witnesses.

0 erative connections etWeen t e t rust r nihmber and said rock shaft,and lever con- ALBERP NINEGAR' trolled means for operating the rockshaft l/Vitnesses:

whereby a movement of the lever in one di- C. B. RATHBUN.

rection will positively engage the clutch and L. A. COLE.

